Welcome to the CDS 1 2024 Physics Lecture focusing on Motion and Laws of Motion Multiple Choice Questions (MCQs). In this session, we’ll engage in solving various MCQs related to the topic of motion and the laws that govern it. By revisiting these questions, we’ll refresh our understanding of fundamental concepts and reinforce our problem-solving skills.
Understanding Motion
Motion is the fundamental concept that describes the change in position of an object over time. It encompasses various parameters such as speed, velocity, and acceleration. By understanding motion, we gain insights into how objects behave and interact in the physical world, from the simplest forms of motion to more complex scenarios.
Motion and Laws of Motion MCQs
Q) Two forces of 5.0 N each are acting on a point mass. If the angle between the forces is 60°, Then the net force acting on the point mass has a magnitude close to :
A. 8.6 N
B. 4.3 N
C. 5.0 N
D. 6.7 N
Ans : A
Q) The area under speed-time graph gives
A. Acceleration
B. Velocity
C. Distance
D. None of the Above
Ans : C
Q) Car A of mass 1500 kg travelling at 25 m/s collides with another car B of mass 1000 kg travelling at 15 m/s in the same direction. After collision the velocity of car A becomes 20 m/s. What is the velocity of car B after collision ?
A. 25 m/s
B. 22.5 m/s
C. 36.7 m/s
D. 16.7 m/s
Ans : B
Q) In the absence of external force, the velocity
A. Remains constant
B. Vanishes
C. Changes continuously
D. None of the Above
Ans : A
Q) A stone is thrown horizontally from the top of a 20 m high building with a speed of 12 m/s. it hits the ground at a distance R from the building. Taking g = 10 m/s2 and neglecting air resistance will giveÂ
A. R = 12 m
B. R = 18 m
C. R = 24 m
D. R = 30 m
Ans : C
For an explanation of the above questions and other related MCQs, please refer to the YouTube video above.
